bytedeco/javacv

how to get video frame start time and audio frame start time?

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#2,140 opened on Dec 7, 2023

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Description

how to get video frame start time and audio frame start time through API? I want to calculate delay diff times between video and audio start time...

Contributor guide

Research direction
Use FFmpegFrameGrabber's getTimestamp() method to retrieve video and audio frame timestamps. Synchronize by comparing their PTS (presentation timestamps). Consult the JavaCV documentation and FFmpegFrameGrabber examples.
Tech stack
java
Domain
audio video rtc
Issue type
Research
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaFFmpeg
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70